Lansweeper

Lansweeper is a network inventory for windows networks. No need to install agents on your clients Powerful Web interface with alert reporting and custom computer actions. Track all your software and operating system licenses. Lansweeper is an automated network discovery and asset management tool which scans all your computers and devices and displays them in an easy accessible web interface.

Requirements:

Microsoft .NET Framework 2.0 or later, SQL server 2000 or higher or SQLexpress